All-in-one designed Relay Test Set: built-in industrial computer, embedded style Windows CE system, with stable and reliable performance; mouse and keyboard built in panel or external connection available; LCD display; Windows operation interface; Adopt EMC box and obtained CE. All-in-one designed Relay Test Set: built-in industrial computer, embedded style Windows CE system, with stable and reliable performance; mouse and keyboard built in panel or external connection available; LCD display; Windows operation interface; Adopt EMC box and obtained CE. All-in-one designed Relay Test Set: built-in industrial computer, embedded style Windows CE system, with stable and reliable performance; mouse and keyboard built in panel or external connection available; LCD display; Windows operation interface; Adopt EMC box and obtained CE approval. Follow us for the latest equipment specials. *Wide Application from old Electromechanic relay to Modern digital relay protection. *3-Years Free Warranty and life maintenance. With microprocessor& LCD screen, no matter you are doing in -house or field testing, Laptop is unnecessary. The LLX1 simulates current and voltage sensors, such as voltage dividers, Rogowski coils, or low-power current transformers, and makes the test signal available via the low-level outputs.